Fluid-pressure bell ringer



A. w. MARTIN FLUID PRESSQRE BELL RINGER June 17, 1924. r 1,497,925

Filed March 25. 1921 Patented June 17, 1924. I j 1' UNITED STATES ALBERT W. MARTIN, 0F INDIANAPOLIS, INDIANA.

FLUID-PRESSURE BELL RINGER.

Application filed. March 25, 1921. Serial No. 455,519.

T 0 all whOm it may concern:

Be it known that I, ALBERT WV. MARTIN, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Fluid-Pressure Bell Ringer; and I do hereby declare that. the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts. i g

This invention relates to a bell construc tion wherein a bell is adapted to be rung by manual or fluid pressure nieansp The chief object ofthe invention consists in-the application of fluid pressure actuated means to the bell constructionfor ringing the same, said pressure means being associated with said bell construction in an improved manner to, reduce the wear on the moving parts and also reduce the number of moving; parts. I i g r The chief feature of the invention consists in positioning the pressure means for ringing the bell adjacent the bell and associating the same directly with the clapper or ringing device, so that said clapper or ringing device will bedirectly actuated to ring the bell without tilting or rocking of the hell. I f I Another feature of the invention consists in the arrangement of the several parts and the detailed construction thereof, whereby the bell yoke is pivotally supported and the clapperissimilarly supported. a

The full nature of the invention will he understood from the accompanying draw-. ings and the ,following description and claims. u

In the drawings, Fig. 1 is a front elevational View of a bell' construction embodying the inventionand showing the general arrangement thereof. Fig. 2 is a side elevational view ofnthe bell construction shown in Fig-1. Fig.- 3. is a central cross sectional view; of the fluid pressure means for ringing the bell. ,Fig. l-is a central cross sectional view of the improvd trun= nion through which fluid pressure is transmittedto the fluid pressure means.

In the drawings,there"is illustrated'agcom ventional bell construction to which the invention has been applied. Said conventional bell'construction' is herein illustrated as a locomotive bell construction wherein 10 iadiea athe a' @f a s and P ided with the upstanding arms 11 terminating 1n the bearings 12 and which are aligned to PlOVlClG'flII axis upon which the bell is pivotally mounted. Thebell is indicated by the numeral 13, and there is also provided within the same a clapper or hell ringer 1a which may be of the usual or any preferred construction. A bell yoke 15 provided with g a central support or collar 16 and two outwardly and aligned trunnions 17 pivotally support said bell in thebearings 12. One of the trunnions 17 is elongatedand car-- ries upon its projecting end a lever 18 b which said bell may be rocked upon the axis hereinb efore described, by wany suitable meanssuch as a cord 12.

Heretofore the other trunnion 17 has been I substantially similar to the first mentioned trunnion, and associated therewith was usu- 7 the axis, as well as the lever 18. Thepresent invention seeks to retain the feature of the pneumatic and automatic operation of the bell ringer, but to apply the same in such a manner that the bell does not have to be tilted upon its axis for ringing purposes, but may besotherwiseactuated to ring the same. This object is accomplished by moving the clapper or hell ringing means adjacent the bell, thus eliminating the. wear I- Ieretoof the trunnions in thebearings. fore, this wear has necessitated, the replace ment and repair of the bell construction since the operation of the eccentric means associated with the trunnion was dependent upon the perfect alignment of said trun nion in thebearing. I s

Heretofore the clapper or hell ringer. 14 has been hingedly mounted; adjacent and preferably within the bell, and this mounting is retained in the present construction.

In the present construction the clapper or ringer 1 4; is suspended by the pendulum strap or spring 20. The upper end of the pendulum strap suitably secured to a rocker arm '21 which is pivotally supported on a PIVOt pin 22, which pivot pin in turnissupported by the ears 23. rigid with a supporting means, such as the cylinder 2d. The bell is pro-. vided with a sleeve or hollow stem portion which is positioned within the'eentral collarportion 16 d s. s c red o andfi sa d l r sen or. by su ta le. the

nut 25. v The clapper support 24 is provided with an upstanding spindle or stem which also is secured within the sleeve portion of the bell construction and is concentric with the same.

The fluid pressure means for tilting the clapper upon its pivotal support instead of tilting the bell upon its pivotal support comprises the cylinder housing 24 with the stem 26.. The-housing 24 is hollowed out to form a cylinder chamber 27, and in said cylinder chamber 27 is positioned a piston 28. One end of thecylinder chamber 27 is closed by suitable means such as the cap or closure member 29; while the other end of said cylinder is provided with an opening 30 which is closed by a guide or stem 31, which in the present instance is adapted to cooper- V ate'withthe end wall and act as a valve for the fluid pressure means. The piston 28' is provided wlth a discharge channel 32 extending from one end towards the other will only be less than that exerted upon the other-face of the piston. The stem 26 is provided with an air supplying channel 34 which discharges into the cylinder, 27 at or near the. closed end, of said cylinder. Thus, fluid pressure admitted to the channel 34 is supplied to the cylinder and serves to move the piston shown in Fig. 3 to the right until such time'as the port 33 is uncovered in-thecylinder, whereupon said fluid pres-- sure istransmitted to. the opposite face of the piston as well and the movement of said piston is then reversed, since the resultant pressure acting on the piston is proportional to the difference in the cross sectional areas of the-opposite faces. Thus, the PlStOIrWlll move' towards theflleft until suchstimeas the port 33 is uncoveredand dischargesinto thefatmosphere, whereupon the pressure is 7 released from the larger face'of the piston of the piston again reverses the movement others which will readily suggest themselves and the p'ressure'applied to the smaller face of'said piston from the left to the right. v

The cylinder 24"i-s cut away at .35 preferably adjacent the ears 23 The piston is also provided with a cut awayv portion 36 and a rocker arm 21 is extended at 37 so as to extendfinto andthrough the opening. 35 in the cylinder and be seatable in the recess 36 o-fithe-piston so that said rocker arm will be moved u-p'on'the axis of'its pivot pin 22 by The guide stem or rod the reciprocations of the piston 28 as hereinbefore described. Thus, the application of air pressure or any other fluid pressure to the conduit 34 serves to reciprocate or tilt the clapper or bell ringer 14 into engagement with the bell 13 to strike the same.

The means for supplying fluid pressure to the stem 26 provided with the conduit 34' includes suitable piping which may be of suitable material such as copper, said piping 38 being connected to the outwardly projecting stem 26 by suitable coupling means 39. A coupling 40, see Figs. 2.and 4, connects the other end of said piping or tubing to the apertured trunnion 17. In Fig. 4 the improved trunnion is illustrated in detail and extending longitudinally through said trunnion, and'herein illustrated as axially thereof, is a' supply channel 41 which is enlarged at 42 to form a chamber to receive suitable springmeans 43 which is normally in engagement with the flange 44'of the pipe.

45, which pipe 45 extends downwardly and is rigidly and non-rotatably supported in a bracket 46 upon the arm 11. A suitable sleeve 47 has a threaded engagement with the enlargement or chamber 42, and as shown clearly in Fig. 4, said pipe 45 and said sleeve 47 are provided with comple mentary ground surfaces 48 to form a seal or fluid-tight joint therebetweemwhich will nevertheless permit the pipe 45 to remain stationary but will permit the trunnion 17 to be rotated in the bearing 12 without loss of fluid pressure. It is to be noted that as constructed, the spring 43 normally maintains the flange 44 in engagement with the sleeve 47, and that upon the application of fluid pressure to the conduit 45, said pres sure serves to seal said two ground surfaces. soas to form a fluid-tight joint.

The pipe 45 is positioned axiallyofthe trunnion 17 and from the foregoing it will be readily understood that'the' aforesaid con-- struction permits the bell to be rung automatically by the fluid pressure meanswithout tilting the bell upon its trunnion axis,

yet will permit said bell to be rung by being 7 tilted upon its trunnion axis by actuating the lever 18 or equivalent means.

,VVhile the invention has beendescribed in great detail in the aforesaid specification, the same is to be considered as illustrative and not restr'ictive incharacter. In the aforesaid specification, a modification is suggested, and this modification as well as to those skilledinthe art to which the aforesaid invention applies are all consideredto be within the broad purview of the invention as outlined by the appendedfclaims.

The invention claimed is: V 1. In a bell construction'the combination with a bell and bell striking means adjacent, thereto, of a fluid pressure operablemeans" for actuating said bell striking means, comprising a longitudinally slotted cylinder, a piston slidable in said cylinder, and means mounted in the cylinder slot and movable by the reciprocation of said piston, said piston including a valve construction for controlling the reciprocations thereof.

2. A bell construction including a pivotally mounted bell, means for causing said bell to swing, a cylinder mounted Within said bell, a reciprocating piston mounted in said cylinder, a striker pivotally mounted on said cylinder having one end thereof extending through said cylinder into engagement with said piston, and means for controlling the movement of said piston whereby said striker may be thereby held in position to be engaged by the swinging of said bell or ]actuated by said piston for engaging said ell.

, 3. A bell constructionincluding a pivotally mounted bell, a single'bell striker contained within said bell, means for causing said bell to swing so as to engage said striker, and reciprocating means within said bell and movable therewith and connected with the striker for causing the same to be swung into engagement with said bell independently of the bell swing for ringing the same.

In witness whereof, I have hereunto affixed my signature.

ALBERT W. MARTIN. 

